Apply T312280 to wmf wikis
# **ALTERs to run:** https://gerrit.wikimedia.org/r/c/mediawiki/extensions/SecurePoll/+/817868/4/sql/mysql/patch-securepoll_properties-unique-to-pk.sql
# **Where to run those changes:** sX
# **When to run those changes:** any time
# **If the schema change is backwards compatible:** Yes
# **If the schema change has been tested already on some of the test/beta wikis:** beta already running with the new schema
# **if the data should be made available on the labs replicas and/or dumps:** no change of the existing rules
Due to a bug in the schema change generator (T314138) the DROP + ALTER should be rewritten to be atomic:
```
alter table securepoll_properties drop key sppr_entity, ADD PRIMARY KEY (pr_entity, pr_key);
```
Progress
[x] s1
[] s2
[] s3
[] s4
[] s5
[] s6
[] s7
[] s8
[x] labtestwiki